36 lines
1.0 KiB
JavaScript
36 lines
1.0 KiB
JavaScript
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// /health (JSON liveness/readiness) and /metrics (Prometheus exposition).
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import { getRatings } from '../lib/imdbRatings.js';
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import { imdbRatingsCount, registry } from '../lib/metrics.js';
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export default async function healthRoutes(fastify) {
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fastify.get('/health', async (_req, reply) => {
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reply.header('Cache-Control', 'no-store');
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let ratings = 0;
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let ratingsOk = false;
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try {
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const map = await getRatings();
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ratings = map.size;
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imdbRatingsCount.set(ratings);
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ratingsOk = true;
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} catch {
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/* ignore — reported via ratingsOk */
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}
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const status = ratingsOk ? 'ok' : 'degraded';
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reply.code(ratingsOk ? 200 : 503);
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return {
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status,
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uptime: Math.round(process.uptime()),
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pid: process.pid,
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node: process.version,
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memory_mb: Math.round(process.memoryUsage().rss / 1024 / 1024),
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imdb_ratings: ratings,
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};
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});
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fastify.get('/metrics', async (_req, reply) => {
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reply.header('Content-Type', registry.contentType);
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return registry.metrics();
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});
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}
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